System information

Advanced Functions
5-18
In this configuration, for DG0LD0, the two green solid path is the active path by controller A while the two red dotted path
is the standby path by controller B; for DG1LD0, the condition is reversed.
Before proceeding with the following configuration tasks, ensure the FC/SAS switches are used to establish the
connections between the hosts and the redundant RAID system. Then perform the GUI configuration tasks as described
in the following Configuration Tasks table.
Configuration Tasks
• Active-Passive Redundant Single MPIO Host (Dual Channel)
In the active-passive mode, one controller is active to process all I/O requests, while the other is idle in standby mode
ready to take over I/O activity should the active primary controller is failed.
As Figure 5-10 shows, the controller A serves as an active role, and the controller B as a standby role. Two LUNs are
both mapped to two fiber ports, fcpa2 and fcpb2. For all LUNs, the green path is the active path to the controller A, and
the red path is the standby path to the controller B.
Tasks Instructions
Create Virtual volumes and specify the preferred
controller
RAID Management > Disk Groups > Create DG0 and DG1
RAID Management > Logical Disks > Create DG0LD0 >
Specify the preferred controller as ctla
RAID Management > Logical Disks > Create DG1LD0 >
Specify the preferred controller as ctlb
Select Storage Provisioning method RAID Management > Storage Provisioning > Symmetric
Add WWPN of HBAs to hosts HBA0 WWPN -> Host 0
HBA1 WWPN -> Host 1
HBA0 WWPN -> Host 2
HBA1 WWPN -> Host 3
Add hosts to each host group Host 0, Host 1, Host2, and Host 3 -> Host Group 0
Map LUNs to host groups DG0LD0 -> Host Group 0
DG1LD0 -> Host Group 0
Figure 5-10 Active-Passive Redundant Single MPIO host
FCP1FCP2FCPa2 FCPa1 FCP1FCP2FCPb2 FCPb1
DG0LD0
DG1LD0
WWPN
WWPN
HBA1HBA0
Host
Host Group 0
Controller B
Controller A